mm: consolidate init_mm definition

* create mm/init-mm.c, move init_mm there
* remove INIT_MM, initialize init_mm with C99 initializer
* unexport init_mm on all arches:

  init_mm is already unexported on x86.

  One strange place is some OMAP driver (drivers/video/omap/) which
  won't build modular, but it's already wants get_vm_area() export.
  Somebody should look there.

[akpm@linux-foundation.org: add missing #includes]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Cc: Americo Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 12 deletions

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 28b1f30601b5..5368fbdc7801 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -15,18 +15,6 @@
 extern struct files_struct init_files;
 extern struct fs_struct init_fs;
 
-#define INIT_MM(name) \
-{                                                               \
-        .mm_rb          = RB_ROOT,                              \
-        .pgd            = swapper_pg_dir,                       \
-        .mm_users       = ATOMIC_INIT(2),                       \
-        .mm_count       = ATOMIC_INIT(1),                       \
-        .mmap_sem       = __RWSEM_INITIALIZER(name.mmap_sem),   \
-        .page_table_lock =  __SPIN_LOCK_UNLOCKED(name.page_table_lock), \
-        .mmlist         = LIST_HEAD_INIT(name.mmlist),          \
-        .cpu_vm_mask    = CPU_MASK_ALL,                         \
-}
-
 #define INIT_SIGNALS(sig) {                                             \
         .count          = ATOMIC_INIT(1),                               \
         .wait_chldexit  = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\